linux-kernel - Re: [PATCH] hwtracing: coresight: Explicitly include correct DT includes

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Date:   Mon, 17 Jul 2023 10:26:08 +0100
From:   Suzuki K Poulose <suzuki.poulose@....com>
To:     Rob Herring <robh@...nel.org>, Mike Leach <mike.leach@...aro.org>,
        James Clark <james.clark@....com>,
        Leo Yan <leo.yan@...aro.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc:     devicetree@...r.kernel.org, coresight@...ts.linaro.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] hwtracing: coresight: Explicitly include correct DT
 includes

Hi Rob

Thanks for the cleanup. Please find my comments below.

On 14/07/2023 18:46, Rob Herring wrote:
> The DT of_device.h and of_platform.h date back to the separate
> of_platform_bus_type before it as merged into the regular platform bus.
> As part of that merge prepping Arm DT support 13 years ago, they
> "temporarily" include each other. They also include platform_device.h
> and of.h. As a result, there's a pretty much random mix of those include
> files used throughout the tree. In order to detangle these headers and
> replace the implicit includes with struct declarations, users need to
> explicitly include the correct includes.
> 
> Signed-off-by: Rob Herring <robh@...nel.org>
> ---
>   drivers/hwtracing/coresight/coresight-core.c     | 2 +-
>   drivers/hwtracing/coresight/coresight-platform.c | 3 +--
>   2 files changed, 2 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/hwtracing/coresight/coresight-core.c b/drivers/hwtracing/coresight/coresight-core.c
> index 118fcf27854d..9fabe00a40d6 100644
> --- a/drivers/hwtracing/coresight/coresight-core.c
> +++ b/drivers/hwtracing/coresight/coresight-core.c
> @@ -17,7 +17,7 @@
>   #include <linux/mutex.h>
>   #include <linux/clk.h>
>   #include <linux/coresight.h>
> -#include <linux/of_platform.h>
> +#include <linux/property.h>
>   #include <linux/delay.h>
>   #include <linux/pm_runtime.h>

This looks correct to me.

>   
> diff --git a/drivers/hwtracing/coresight/coresight-platform.c b/drivers/hwtracing/coresight/coresight-platform.c
> index 3e2e135cb8f6..d94b0e77bcfc 100644
> --- a/drivers/hwtracing/coresight/coresight-platform.c
> +++ b/drivers/hwtracing/coresight/coresight-platform.c
> @@ -9,9 +9,8 @@
>   #include <linux/slab.h>
>   #include <linux/clk.h>
>   #include <linux/of.h>
> -#include <linux/of_address.h>
> +#include <linux/of.h>

We already include of.h two lines above, so we could skip this.

>   #include <linux/of_graph.h>
> -#include <linux/of_platform.h>
>   #include <linux/platform_device.h>
>   #include <linux/amba/bus.h>
>   #include <linux/coresight.h>

Suzuki